Estimate how much grout a tiling job needs from the tile size, the joint width, the tile thickness and the area to cover. Enter the area, the tile length and width, the thickness, the joint width and a wastage allowance. This is an approximate estimate for buying materials, not a quote; check the grout pack yield. All processing runs locally in your browser. Your data is not uploaded to any server. 100% Local
Choose your units, enter the area and the tile length, width and thickness, then the joint width and a wastage allowance. Press Calculate grout to see the grout rate per square metre and the total to buy.
Deeper joints and textured tiles take more grout, so raise the wastage allowance. Mix small batches and keep a little spare for later repairs.
The actual figure depends on how deeply the joints are filled and on the tile texture, so treat it as a starting point and buy slightly more.